1·Without trees, many animals can not live on the earth. It's not easy for man to live on the earth, either.
没有树木，许多动物不能在地球上生活，人类在地球上生活也不容易。
2·On the earth, he made friends with a fox.
在地球上，他和一只狐狸交了朋友。
3·They are made in 10 minutes, used in 20 minutes and normally remain on the earth for over 100 years since they are hard to be broken down.
它们在10分钟内制成，在20分钟内使用完毕，但由于很难被降解，它们通常会在地球上残留100年以上。
4·Help us build a base on the earth.
帮我们在地球上建立一个基地。
5·We live on the earth.
我们生活在地球上。
6·People and living things can live on the earth.
人和生物可以在地球上生存。
7·For us common people on the earth, the dream of travelling around space will come true.
对于我们这些地球上的普通人，去太空旅行的梦想会成真。
8·The poor poet lay on the earth and wept, for the arrow had really flown into his heart.
可怜的诗人躺在地上哭泣，因为箭的确射入了他的心里。
9·Every creature on the earth should be treated as an equal member of the nature and be protected.
地球上的每个生物都应被视为自然界平等的一员，并受到保护。
10·When the radiant energy of the sun falls on the earth, it is changed into heat energy, and as a result the earth is warmed.
当太阳的辐射能落在地球上时， 就变为热能，于是， 地球暖和起来了。
—— 《新英汉大辞典》